Present simple
Habits, facts, and how things usually are. To say no or ask, add do or does: I don't write down, he doesn't write down.
- I / you / we / they write down
- he / she / it writes down
noter
Irregular verb, phrasal verb.
Phrasal verb: down
Only write changes; down stays the same: wrote down, written down.
Object in the middle
The object can go before down, as the card writes it: write something down. A pronoun always does: write it down.
In speech, the helping verbs shorten: I’m, he’s, we’re, I’ve, I’ll, I’d.
Enough to talk about now, the past, and your plans, and to give instructions.
Habits, facts, and how things usually are. To say no or ask, add do or does: I don't write down, he doesn't write down.
What is happening now, and plans already arranged: we’re leaving tomorrow.
A finished action at a past time: yesterday, in 2020. To say no or ask, add did: I didn't write down.
Plans and intentions, and what you can see coming: it’s going to rain.
Orders, advice, and instructions. Let’s suggests doing it together. To say no: don't write down.